HHsearch alignment for GI: 254780725 and conserved domain: TIGR01425

>TIGR01425 SRP54_euk signal recognition particle protein SRP54; InterPro: IPR006325 The signal recognition particle (SRP) is a multimeric protein, which along with its conjugate receptor (SR), is involved in targeting secretory proteins to the rough endoplasmic reticulum (RER) membrane in eukaryotes, or to the plasma membrane in prokaryotes , . SRP recognises the signal sequence of the nascent polypeptide on the ribosome, retards its elongation, and docks the SRP-ribosome-polypeptide complex to the RER membrane via the SR receptor. SRP consists of six polypeptides (SRP9, SRP14, SRP19, SRP54, SRP68 and SRP72) and a single 300 nucleotide 7S RNA molecule. The RNA component catalyses the interaction of SRP with its SR receptor . In higher eukaryotes, the SRP complex consists of the Alu domain and the S domain linked by the SRP RNA. The Alu domain consists of a heterodimer of SRP9 and SRP14 bound to the 5' and 3' terminal sequences of SRP RNA. This domain is necessary for retarding the elongation of the nascent polypeptide chain, which gives SRP time to dock the ribosome-polypeptide complex to the RER membrane. This entry represents the 54 kDa SRP54 component, a GTP-binding protein that interacts with the signal sequence when it emerges from the ribosome. SRP54 of the signal recognition particle has a three-domain structure: an N-terminal helical bundle domain, a GTPase domain, and the M-domain that binds the 7s RNA and also binds the signal sequence. The extreme C-terminal region is glycine-rich and lower in complexity and poorly conserved between species.; GO: 0005525 GTP binding, 0008312 7S RNA binding, 0006614 SRP-dependent cotranslational protein targeting to membrane, 0048500 signal recognition particle.
Probab=96.62  E-value=0.014  Score=35.08  Aligned_cols=172  Identities=15%  Similarity=0.164  Sum_probs=92.8

Q ss_pred             CEEEEEEECCCCCCHHHHHHHHHHHHHHHCCCCEEEEECCCCCCCCHHHCCCCCCCCHHHHHCCCCCHHHHHHHHHHHCC
Q ss_conf             53799974698877568999999999962699499997879898603343899878988863184561243376532024
Q gi|254780725|r  161 GCSISFIGSRGGVGSSTIAHNCAFSIASVFAMETLLADLDLPYGTANINFDKDPINSISDAIYPVGRIDKAFVSRLPVFY  240 (427)
Q Consensus       161 grvIav~g~KGGvGkTTiA~nLA~~LA~~~~~~VlLvDlDl~~g~~~~~l~~~~~~~l~d~l~~~~rlD~~~l~~~l~~~  240 (427)
T Consensus       121 ~~ViMfVGL-QGaGKTTtctKLA~YYk-~rGfK~~lvCADTFRAGAFdQLkqN------------------A~kA~iPFY  180 (453)
T TIGR01425       121 SSVIMFVGL-QGAGKTTTCTKLAYYYK-RRGFKPALVCADTFRAGAFDQLKQN------------------ATKAKIPFY  180 (453)
T ss_pred             CEEEEEEEC-CCCCHHHHHHHHHHHHH-CCCCCEEEECCCCCCCCHHHHHHHH------------------HHHCCCCCC
T ss_conf             215888621-48871566878777763-2664325651775423248999874------------------764489712


Q ss_pred             CCCEEEEECCCCCCCHHCCCHHHHHHHHHHHHHCCCEEEECCCCCCCH---HHHHHHH-----HCCCCCCCCCCCHH--H
Q ss_conf             898068724876120320799999998999851288899738888898---9999986-----20125435787768--8
Q gi|254780725|r  241 AENLSILTAPAMLSRTYDFDEKMIVPVLDILEQIFPLVILDVPHVWNS---WTQEVLT-----LSDKVVITTSLDLA--G  310 (427)
Q Consensus       241 ~~gL~lL~a~~~~~~~~~~~~~~l~~ll~~l~~~yd~VIiD~p~~~~~---~~~~~L~-----~AD~vviV~~p~~~--s  310 (427)
T Consensus       181 Gs--y~---E~DPVk---iA---~EGv~~Fk~E~~diIivDTSGRHkQe~~LF~Em~qv~~Ai~Pd~iifVMDGsIGQAA  249 (453)
T TIGR01425       181 GS--YL---ESDPVK---IA---SEGVEKFKKEKFDIIIVDTSGRHKQEEELFEEMVQVAEAIKPDSIIFVMDGSIGQAA  249 (453)
T ss_pred             CC--CC---CCCCEE---EE---CCCHHHHHCCCCCEEEEECCCCCHHHHHHHHHHHHHHHCCCCCCEEEEECCCHHHHH
T ss_conf             01--04---898707---80---020113221278479983798732258888998768633499836998066166788


Q ss_pred             HHHHHHHHHHHHHCCCCCCCCEEEEECCCCCCCCHHHHHHHHHHHCCCEEE---------EECCCHHHHH
Q ss_conf             999999999999819876753899956589875200599999984895379---------9068799999
Q gi|254780725|r  311 LRNSKNLIDVLKKLRPADKPPYLVLNQVKTPKKPEISISDFCAPLGITPSA---------IIPFDGAVFG  371 (427)
Q Consensus       311 lr~a~~ll~~l~~~~~~~~~~~iVlNr~~~~~~~~i~~~~~~~~lg~~~~~---------~IP~D~~~~~  371 (427)
T Consensus       250 ~~QAkA----FK~~---~~vGSvIiTKLDGHAkGGGALSAVA-ATKsPiiFIGTGEhv~d~E~F~~~~Fv  311 (453)
T TIGR01425       250 FSQAKA----FKDS---VEVGSVIITKLDGHAKGGGALSAVA-ATKSPIIFIGTGEHVDDFEIFDAEPFV  311 (453)
T ss_pred             HHHHHH----HHHC---CCCEEEEEECCCCCCCCCHHHHHHH-HHCCCEEEECCCCCCCCCCCCCCCCHH
T ss_conf             999998----6300---3500388751567767623788987-535977981377502760578997147